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Analog Devices Inc./Maxim Integrated MAX4657EUA+T
- Part No.:
- MAX4657EUA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX4657EUA+T.pdf
- Description:
- IC SWITCH SPST-NCX1 10OHM 8UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:4,561
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Product details
Overview
MAX4657EUA+T from Maxim Integrated is a normally closed (NC), single-pole/single-throw (SPST), high-current CMOS analog switch in an 8-pin µMAX package. It delivers ≤10Ω on-resistance at ±15V supplies, supports ±150mA continuous/±300mA peak switching current, and handles rail-to-rail analog signals across ±4.5V to ±20V dual supplies or +9V to +40V single supply - ideal for audio signal routing and relay replacement in industrial test equipment.
For engineers reviewing the MAX4657EUA+T datasheet, MAX4657EUA+T pinout, MAX4657EUA+T application, or MAX4657EUA+T equivalent, this page provides verified electrical specifications, thermal derating data, truth table behavior under logic "0" input, real-world leakage performance (≤1nA off-leakage at +25°C), and direct comparison with DG417/DG418-compatible alternatives for high-reliability analog switching designs.
Technical Context
The MAX4657EUA+T implements a parallel N-channel/P-channel MOSFET switch architecture with proprietary body-drive sensing to eliminate voltage-drop limitations typical of standard CMOS switches. This enables stable on-resistance and low leakage even with >600mV COM–NO/NC differential voltage.
It operates without a separate logic-level supply (VL not required), accepts TTL/CMOS-compatible control inputs (VIH = 2.4V, VIL = 0.8V), and maintains ≤1Ω RON flatness over its full analog signal range - critical for precision audio and instrumentation signal paths where harmonic distortion must stay below 0.007%.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (RON) | ≤10Ω max at ±15V supplies - ensures minimal insertion loss and voltage drop in high-current analog paths. |
| Continuous Switch Current | ±150mA - supports robust load switching in redundant backup systems and xDSL line drivers. |
| Peak Switch Current | ±300mA (1ms, 10% duty cycle) - enables transient surge handling in telecom interface protection circuits. |
| Off-Leakage Current | ≤1nA max at TA = +25°C - preserves signal integrity in high-impedance sensor front-ends and audio mixing buses. |
| Supply Range | ±4.5V to ±20V dual or +9V to +40V single - allows flexible biasing in mixed-signal industrial controllers and PBX power domains. |
| Turn-On/Off Time | 110ns / 75ns typical (RL = 100Ω, CL = 35pF) - meets timing requirements for fast-switching audio multiplexers and automated test relays. |
| Bandwidth | 210MHz - supports wideband RF sampling paths and high-fidelity audio up to 20kHz with <0.007% THD. |
Pinout & Package
MAX4657EUA+T uses an 8-pin µMAX package (3.0mm × 3.0mm, 0.6mm height) with exposed paddle (EP) for thermal enhancement. Pin 1 = COM (analog common), Pin 3 = GND, Pin 4 = V+, Pin 6 = IN (TTL/CMOS digital control), Pin 7 = V−, Pin 8 = NC (normally closed terminal). Pins 2 and 5 are no-connect (N.C.). EP must be connected to V+ for optimal thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (COM) | Analog Switch Common | Primary current path node - connects to load; bidirectional conduction supported. |
| 2, 5 (N.C.) | No Internal Connection | Unbonded pins - must remain unconnected per datasheet; no internal circuitry attached. |
| 3 (GND) | Ground Reference | Logic and substrate reference; must be tied to system ground before power sequencing. |
| 4 (V+) | Positive Supply Input | Accepts +9V to +40V (single) or up to +20V (dual); EP pad connects here for thermal management. |
| 6 (IN) | Digital Control Input | TTL/CMOS-compatible; logic low (≤0.8V) closes switch (NC → COM), logic high (≥2.4V) opens it. |
| 7 (V−) | Negative Supply Input | Accepts −4.5V to −20V (dual); absolute max V+–V− = 44V - critical for asymmetric supply design. |
| 8 (NC) | Normally Closed Terminal | Conducts to COM when IN = logic low; open-circuit when IN = logic high - defines NC topology. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail signal handling | Switches analog voltages from V− to V+ without clipping - essential for ±15V op-amp interfaces and audio line-level signals. |
| No VL supply required | Eliminates need for auxiliary logic-level supply - simplifies BOM and PCB layout in space-constrained µMAX applications. |
| 1Ω max RON flatness | Maintains consistent gain and phase response across full signal swing - prevents harmonic distortion in audio routing. |
| 1nA max off-leakage at +25°C | Minimizes DC error in high-impedance sensor multiplexing (e.g., thermocouple or pH probe front-ends). |
| PIN-compatible with DG417/DG418 | Enables drop-in upgrade path from legacy Vishay switches while delivering higher current and lower RON. |
Applications
| Audio Signal Routing | Relay Replacement |
|---|---|
Use Scenario: Selecting between multiple microphone preamp outputs in a professional audio mixer. IC Role / Device Role / Timing Role: SPST NC analog switch routing line-level signals with <0.007% THD and 210MHz bandwidth. Use Value: Replaces electromechanical relays with 1M× faster switching, zero contact wear, and no audible click artifacts. |
Use Scenario: Isolating backup power rails in redundant telecom power modules. IC Role / Device Role / Timing Role: High-reliability NC switch enabling automatic failover with ±150mA continuous current capability. Use Value: Eliminates relay bounce, arcing, and lifetime limits - sustains >10⁹ operations versus ~10⁵ mechanical cycles. |
| Test Equipment Signal Path | xDSL Modem Line Interface |
Use Scenario: Multiplexing DUT signals into automated test instrumentation with calibrated impedance matching. IC Role / Device Role / Timing Role: Low-RON, low-leakage analog switch ensuring measurement accuracy across 50Ω/600Ω systems. Use Value: Maintains <±0.1dB gain flatness and −77dB off-isolation at 1MHz - critical for precision parametric testing. |
Use Scenario: Protecting ADSL/VDSL line drivers during hot-plug events and fault conditions. IC Role / Device Role / Timing Role: Fast-turn-off (75ns) NC switch isolating transceiver from short-circuit faults on twisted-pair lines. Use Value: Limits fault current to ±300mA peak while preserving signal integrity up to 2.2MHz upstream/downstream bands. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DG417LN | Higher on-resistance (35Ω typ), lower continuous current (±30mA), SO-8 only - no µMAX option. | Limited to low-power signal routing; unsuitable for >100mA loads or high-bandwidth audio. | Select DG417LN only if legacy footprint compatibility is mandatory and current/power demands are minimal. |
| MAX4655EUA+T | Same µMAX-8 package, identical pinout, but normally closed variant replaced by normally open (NO) configuration. | Used where default-open safety state is required (e.g., power enable gating), not NC fail-safe operation. | Choose MAX4655EUA+T only when logic polarity inversion is acceptable and NO behavior aligns with system fault strategy. |
Compared with DG417LN and MAX4655EUA+T, the MAX4657EUA+T uniquely combines NC topology, 150mA continuous current, and 10Ω RON in µMAX - making it the only option for compact, high-current, fail-closed analog switching without redesigning layout or compromising signal fidelity.
Availability
MAX4657EUA+T is available at Aetrix Electronics and suitable for audio signal routing, relay replacement, and test equipment requiring stable component supply with guaranteed long-term manufacturability and traceable sourcing.
Supply support for MAX4657EUA+T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and high-reliability semiconductor solutions for industrial, communications, and computing markets.
The MAX4655–MAX4658 family was engineered specifically for high-current, low-RON analog switching in mission-critical systems where mechanical relays fail - targeting telecom infrastructure, automated test equipment, and professional audio hardware.
FAQ
What is the maximum continuous current rating for MAX4657EUA+T?
The MAX4657EUA+T supports ±150mA continuous current through its COM and NC terminals under specified thermal conditions (TA ≤ +70°C, derated above). This rating is validated per Absolute Maximum Ratings and Electrical Characteristics tables in the official Maxim datasheet Rev 4, and reflects sustained conduction without exceeding junction temperature limits or degrading RON stability. Exceeding this value risks thermal shutdown or permanent damage.
Does MAX4657EUA+T require a separate logic-level supply (VL)?
No, MAX4657EUA+T does not require a VL supply. Its digital control input (Pin 6) is fully TTL/CMOS compatible across the full operating temperature range (−40°C to +85°C), accepting VIH ≥ 2.4V and VIL ≤ 0.8V referenced to GND. This eliminates external level-shifting circuitry and reduces system complexity - a key advantage over older analog switches requiring dedicated logic rails.
What is the on-resistance flatness specification for MAX4657EUA+T?
The MAX4657EUA+T guarantees ≤1Ω maximum on-resistance flatness (RFLAT(ON)) over its full analog signal range when ICOM = 100mA and VNO/VNC sweeps from −5V to +5V. This tight flatness ensures minimal gain variation and harmonic distortion in precision audio and instrumentation applications - directly measured and 100% tested per datasheet Note 3.
Can MAX4657EUA+T operate with asymmetric dual supplies?
Yes, MAX4657EUA+T supports asymmetric dual supplies as long as the total V+ to V− differential remains within 40V (absolute max 44V). For example, it functions correctly with V+ = +12V and V− = −5V (17V total), enabling optimized biasing in mixed-voltage systems like PBX line cards - a capability explicitly confirmed in the Detailed Description section of the datasheet.
Is the exposed paddle (EP) on MAX4657EUA+T electrically connected?
Yes, the exposed paddle (EP) on MAX4657EUA+T is internally connected to V+ and must be soldered to a V+ copper pour on the PCB. This connection is mandatory for thermal performance: the µMAX-EP package's 825mW continuous power dissipation rating (at TA = +70°C) assumes EP is tied to V+. Leaving EP floating or grounding it violates Absolute Maximum Ratings and risks thermal runaway.
MAX4657EUA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 10Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 9V ~ 40V
- Voltage - Supply, Dual (V±):
- ±4.5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 200ns, 100ns
- -3db Bandwidth:
- 210MHz
- Charge Injection:
- 23pC
- Channel Capacitance (CS(off), CD(off)):
- 25pF, 25pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-uMAX/uSOP
MAX4657EUA+T FAQ
1.How can I place an order for MAX4657EUA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX4657EUA+T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX4657EUA+T reliable?
The price and inventory of MAX4657EUA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX4657EUA+T is usually 5 days.
3.What payment methods are accepted for MAX4657EUA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX4657EUA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX4657EUA+T?
MAX4657EUA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX4657EUA+T order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX4657EUA+T?
For technical support, including MAX4657EUA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX4657EUA+T requirements.
6.How does Aetrix verify that MAX4657EUA+T is sourced from the original manufacturer or authorized distributors?
All MAX4657EUA+T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX4657EUA+T meets industry standards.
7.What is the process for return or replacement of MAX4657EUA+T?
All MAX4657EUA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX4657EUA+T, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX4657EUA+T part is unused and in its original packaging.
Return procedure for MAX4657EUA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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